|Department|Total Deputies|Uninominal Deputies|Plurinominal Deputies|Special Indigenous or Campesino Deputies|Senators|
|---|---|---|---|---|---|
|La Paz|29|14|14|1|4|
|Santa Cruz|28|14|13|1|4|
|Cochabamba|19|9|9|1|4|
|Potosí|13|7|6|0|4|
|Chuquisaca|10|5|5|0|4|
|Oruro|9|4|4|1|4|
|Tarija|9|4|4|1|4|
|Beni|8|4|3|1|4|
|Pando|5|2|2|1|4|
|Total|130|63|60|7|36|

Question: what is the difference in number between the uninominal deputies from potosí and beni?
Answer: 3